WO2018033718A1 - Composition antimicrobienne - Google Patents

Composition antimicrobienne Download PDF

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Publication number
WO2018033718A1
WO2018033718A1 PCT/GB2017/052399 GB2017052399W WO2018033718A1 WO 2018033718 A1 WO2018033718 A1 WO 2018033718A1 GB 2017052399 W GB2017052399 W GB 2017052399W WO 2018033718 A1 WO2018033718 A1 WO 2018033718A1
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WIPO (PCT)
Prior art keywords
composition according
microbial
composition
component
chlorhexidine
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PCT/GB2017/052399
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English (en)
Inventor
Huw Evans
Christopher Plummer
Monica LEE
Rose MCKERNEY
Karla SOLOMOM-DENSON
Rhiannon Sian HURD
Original Assignee
Byotrol Plc
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Application filed by Byotrol Plc filed Critical Byotrol Plc
Priority to BR112019002782-3A priority Critical patent/BR112019002782A2/pt
Priority to CN201780050291.7A priority patent/CN109561694B/zh
Priority to EP17758255.8A priority patent/EP3500102B1/fr
Priority to JP2019530238A priority patent/JP2019531335A/ja
Priority to SG11201901257VA priority patent/SG11201901257VA/en
Publication of WO2018033718A1 publication Critical patent/WO2018033718A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/02—Amines; Quaternary ammonium compounds
    • A01N33/12—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
    • A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
    • A01N47/44—Guanidine; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/13—Amines
    • A61K31/14—Quaternary ammonium compounds, e.g. edrophonium, choline
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/13—Amines
    • A61K31/155—Amidines (), e.g. guanidine (H2N—C(=NH)—NH2), isourea (N=C(OH)—NH2), isothiourea (—N=C(SH)—NH2)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/74—Synthetic polymeric materials
    • A61K31/785—Polymers containing nitrogen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A61K8/416—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42—Amides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/43—Guanidines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
    • A61L2/0082—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using chemical substances
    • A61L2/0088—Liquid substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/005—Antimicrobial preparations

Definitions

  • This invention relates to anti-microbial compositions and to formulations including the antimicrobial compositions.
  • the invention relates to anti-microbial compositions that can be used on skin.
  • Micro-organisms such as bacteria and viruses, for example norovirus, polio virus and adenovirus, are well known to present health hazards due to infection or contamination. Along with fungi, yeasts and other micro-organisms they can also cause spoilage of items such as food, clothing and produce unpleasant odours. When micro-organisms are present on the surface of a substrate, such as skin, they can replicate rapidly to form colonies.
  • anti-microbial agents can destroy micro-organisms that are present in a wide range of environments.
  • anti-microbial agents that may be used in medical, industrial, commercial, domestic and marine environments are known.
  • Many of the known anti-microbial agents have previously been included in compositions for use in these environments for various applications.
  • Known anti-microbial agents and the compositions that contain these anti-microbial agents act via a number of different mechanisms.
  • anti-microbial agents are poisonous to microorganisms and, therefore, destroy microorganisms with which they are contacted.
  • anti-microbial agent examples include hypochlorites (bleaches), phenol and compounds thereof, and salts of copper, tin and arsenic.
  • hypochlorite bleach is very effective at killing micro-organisms on solid surfaces, but inappropriate for application to skin due to its corrosive properties.
  • these materials tend to be effective in a wet environment for sterilization and cleansing but stop working shortly after drying.
  • Many skin sanitizers are alcohol-based. These are typically an alcohol-containing preparation designed for application to the hands for reducing the number of viable microorganisms on the hands. Such preparations typically contain 60%-95% ethanol or isopropanol.
  • isopropyl alcohol has established anti-bacterial properties, it has the disadvantage that, when used regularly, it can cause dryness and skin irritation. As a result, some people may be reluctant to use such creams, soaps and other compositions comprising significant levels of isopropanol.
  • compositions comprising this type of anti-microbial agent can, therefore, be problematic. There can also be problems associated with the use of compositions containing this type of anti-microbial agent, particularly in consumer materials where it is difficult to ensure that they are used for designated purposes.
  • toxicity is intended to refer to toxicity to complex organisms such as mammals. References to "toxic” are to be construed accordingly.
  • anti-microbial agents not just for topical application on skin but for general use. For example, some anti-microbial agents once they enter the environment can harm other organisms. They can also be very stable and persist in the environment for long periods causing concerns around build-up and residual levels. Because of these factors the list of effective and available anti-microbial agents, particularly for use on skin, is becoming more restricted and the burden of registering new anti-microbials more prohibitive. At the same time the public are becoming increasingly concerned with sanitization, both of person and property following outbreaks such as MRSA in hospitals.
  • compositions for a variety of applications and uses such as compositions for use on skin, for example hand sanitising agents, that have anti-microbial properties and that address one or more of the problems set out above.
  • compositions for use on skin for example hand sanitising agents
  • the potential reactivity of an anti-microbial agent once in a composition is important as some anti-microbial agents are rendered inactive by chemical reaction.
  • compositions containing these combinations of components can have some surprising and unexpected properties.
  • the listing or discussion of an apparently prior-published document in this specification should not necessarily be taken as an acknowledgment that the document is part of the state of the art or is common general knowledge.
  • the present invention provides an anti-microbial composition comprising:
  • Q is a C10-20 (for example C12-20) hydrocarbon chain which may be saturated or unsaturated, optionally the hydrocarbon chain may be interrupted by one or more amido groups (-NHC(O)-), Y " is a halide anion (such as chloride, bromide, fluoride, iodide), an alkylsulphate (such as a C1-6 alkylsulphate, for example methosulphate (or methylsulphate, CH3OSO3 " ), sulphonate (GSO3 " , wherein G is an organic residue, such as a C1-6 alkyl group)), saccharinate, or bicarbonate, or a mixture of compounds of formula (C);
  • Y " is a halide anion (such as chloride, bromide, fluoride, iodide), an alkylsulphate (such as a C1-6 alkylsulphate, for example methosulphate (or methylsulphate, CH3OSO3 "
  • an anti-microbial component comprising at least one anti-microbial quaternary ammonium compound and chlorhexidine or a chlorhexidine salt
  • Component (i) comprises one or more compounds of formula (C):
  • Q is a C10-20 hydrocarbon chain which may be saturated or unsaturated, such as a C12-20 or C14-20 hydrocarbon chain, for example a C12, 13, 14, 15, 16, 17 or is hydrocarbon chain; optionally the hydrocarbon chain (whether saturated or unsaturated) may be interrupted by one or more amido groups (-NHC(O)-), for example one, two, three or four amido groups, such as one amido group.
  • amido groups -NHC(O)-
  • Q may, for example, be a saturated and uninterrupted C12-20 or C14-20 hydrocarbon chain.
  • Q may, alternatively, be a C10-20 or C12-20 hydrocarbon chain that is unsaturated and/or interrupted by one or more amido groups.
  • Y " is a halide anion such as chloride, bromide, fluoride, iodide, or an alkylsulphate (such as a C1-6 alkylsulphate, for example methosulphate (or methylsulphate, CH3OSO3 " ), sulphonate (GS0 3 ⁇ , wherein G is an organic residue, such as a C1-6 alkyl group)), saccharinate, or bicarbonate.
  • alkylsulphate such as a C1-6 alkylsulphate, for example methosulphate (or methylsulphate, CH3OSO3 " ), sulphonate (GS0 3 ⁇ , wherein G is an organic residue, such as a C1-6 alkyl group)
  • G is an organic residue, such as a C1-6 alkyl group
  • Y " is a halide anion, for example chloride or methosulphate anion.
  • Preferred compounds of formula (C) include those of formula:
  • Q 1 is an unsubstituted, uninterrupted C14-20 alkyl chain, such as a C16-20 alkyl chain, for example a C14, 15, 16, 17 or is alkyl chain, wherein Y " is as defined above, for example Y " is a halide anion such as chloride.
  • An example of a compound of formula C 1 that may be used in the present invention is [N(CH 3 )3 Ci6 H 3 3] + CI-, cetyl trimethyl ammonium chloride (CTAC).
  • Preferred compounds of formula (C) also include those of formula:
  • Q 2 has structure -(CH2) a NHC(0)(CH2)bCHCH2, wherein a + b is an integer of from 8 to 18 (such as 10 to 18), provided that a and b are each independently an integer of from 1 to 9, for example a is from 1 to 5 and b is from 5 to 9, wherein Y " is as defined above, for example Y " is an alkylsulphate anion, such as methosulphate anion.
  • An example of the group Q 2 is -(CH 2 ) 3 NHC(0)(CH 2 )8CHCH 2
  • An example of a compound of formula C 2 that may be used in the present invention is [N(CH 3 )3(CH2)3NHC(0)(CH2)8CHCH 2 ] + CH 3 S0 4 " , undecylenamidopropyltrimonium methosulfate (available commercially as Rewocid UTM 185).
  • compositions of the invention comprise chlorhexidine or a chlorhexidine salt.
  • suitable chlorhexidine salts include the acetates, formates, gluconates, hydrochlorides, isoethionates, lactates, and succinamates of chlorhexidine.
  • suitable salts include, but are not limited to chlorhexidine diphosphanilate, chlorhexidine digluconate, chlorhexidine diacetate, chlorhexidine dihydrochloride, chlorhexidine dichloride, chlorhexidine dihydroiodide, chlorhexidine diperchlorate, chlorhexidine dinitrate, chlorhexidine sulfate, chlorhexidine sulfite, chlorhexidine thiosulfate, chlorhexidine di-acid phosphate, chlorhexidine difluorophosphate, chlorhexidine diformate, chlorhexidine dipropionate, chlorhexidine di-iodobutyrate, chlorhexidine di-n- valerate, chlorhexidine dicaproate, chlorhexidine malonate, chlorhexidine succinate, chlorhexidine succinamate, chlorhexidine malate, chlorhexidine tartrate, chlorhexidine dimonoglycolate, chlorhexidine mono-diglycolate,
  • chlorhexidine salt that may be used in the compositions of the invention is chlorhexidine di-gluconate.
  • Component (ii) of the compositions of the invention also comprises at least one quaternary ammonium anti-microbial agent.
  • the quaternary ammonium anti-microbial agent(s) used in the present invention are typically water soluble at room temperature and pressure.
  • Suitable anti-microbial quaternary ammonium compounds include compounds of formula (A) shown below.
  • the groups R 1 and R 2 contain the same number of carbon atoms but this is not essential and compounds in which R 1 and R 2 contain different number of carbon atoms can be used.
  • X " is a halide anion (such as chloride, bromide, fluoride, iodide), sulphonate (GSO3 " , wherein G is an organic residue, such as a C1-6 alkyl group), saccharinate, or bicarbonate.
  • each group R 1 and R 2 is independently a straight chain, unsubstituted, uninterrupted Cs-12 alkyl group, for example an alkyl group containing 8, 9, 10, 11 or 12 carbon atoms.
  • R 1 and R 2 may be the same, for example R 1 and R 2 may both be alkyl groups containing 8, 9, 10, 11 or 12 carbon atoms, as an example both R 1 and R 2 may be 10.
  • Suitable anti-microbial quaternary ammonium compounds also include benzalkonium compounds having the formula (B) shown below.
  • X " is a halide anion such as chloride, bromide, fluoride, iodide, sulphonate (GSO3 " , wherein G is an organic residue, such as a C1-6 alkyl group), saccharinate or bicarbonate.
  • the compounds of formula (B) are generally called benzalkonium compounds.
  • the benzalkonium chloride is provided and/or used as a mixture of Ce-ie alkyl groups, particularly a mixture of straight chain, unsusbtituted and uninterrupted alkyl groups n- CsHi7 to n-Ci8H 3 7, mainly n-Ci2H 2 5 (dodecyl), n-Ci4H 2 9 (tetradecyl), and n-Ci6H 3 3 (hexadecyl).
  • m is 8, 10, 12, 14 and/or 16.
  • Most preferably m is from 8 to 12 for example 8, 10 and/or 12 or from 12 to 16, for example 12, 14 and/or 16.
  • benzalkonium compounds we also include derivatives of benzalkonium compounds whereby the alkyl group C m H2m+i shown below can be substituted by another organic group.
  • organic groups include but are not limited to alkenyl, phenyl, amide, ester, alcohol, and ether groups or combinations thereof.
  • An example of such a derivative of a benzalkonium compound is diisobutylphenoxyethoxyethyl-dimethylbenzyl ammonium chloride, whose I NCI name is benzethonium chloride (typically abbreviated to BENZ). The structure of benzethonium chloride is shown below.
  • composition comprises two or more anti-microbial quaternary ammonium compounds
  • a compound of formula (A) and a compound of formula (B) may be present, or the composition may comprise more than one compound of formula (A) or more than one compound of formula (B).
  • Examples of quaternary ammonium compounds of formula (A) include di-n-decyldimethyl ammonium chloride, octyl decyl dimethyl ammonium chloride and dioctyl dimethyl ammonium chloride.
  • Examples of commercially available compounds of formula (A) include Acticide DDQ 40 from Thor, Bardac 2240 from Lonza, Bardac 2280 from Lonza and Maquat 4480E, from Mason Chemical Company, USA.
  • Examples of quaternary ammonium compounds of formula (B) include N,N- benzyldimethyloctylammonium chloride, ⁇ , ⁇ -benzyldimethyldecylammonium chloride , N- dodecyl-N-benzyi-N,N-dimethyiammonium chloride, N-tetradecyl-N-benzyi-N,N- dimethylammonium chloride, N-hexadecyl-N,N-dimethyl-N-benzylammonium chloride, ⁇ , ⁇ -dimethy! N-benzyl N-octadecyl ammonium chloride and mixtures thereof.
  • a single CAS number often refers to more than one blend or mixture.
  • a CAS classification for a commercial preparation typically covers blends comprising specified compounds in amounts within defined ranges.
  • the compositions having the CAS numbers quoted above are only examples of compositions having a given CAS number that may be used in the present invention.
  • Examples of commercially available compounds of formula (B) include Acticide BAC 50M from Thor, Barquat MB50/80 from Lonza, Lonzagard Benzethonium Chloride USP from Lonza.
  • the anti-microbial quaternary ammonium compound or compounds used in the composition of the invention is selected from the group consisting of di-n-decyldimethyl ammonium chloride (DDAC (CAS number 7173-51-5)), benzalkonium chloride (BAC) such as benzalkonium chloride of formula (B) above wherein m is 8 and mixtures thereof.
  • DDAC di-n-decyldimethyl ammonium chloride
  • BAC benzalkonium chloride
  • This benzalkonium chloride has CAS number 68424-85-1
  • BENZ benzethonium chloride
  • component (i) and anti-microbial component (ii) present in the compositions of the present invention will vary depending on a number of factors, such as the intended use of composition and the particular compound(s) used. For example, as will be appreciated by the person skilled in the art, higher concentrations of (i) and/or (ii) may be required in order to provide sterilisation compared to providing sanitisation or disinfection.
  • Anti-microbial component (ii) may consist essentially of at least one anti-microbial quaternary ammonium compound and chlorhexidine or a chlorhexidine salt.
  • Anti-microbial component (ii) may consist of at least one anti-microbial quaternary ammonium compound and chlorhexidine or a chlorhexidine salt.
  • the ratio of the at least one anti-microbial quaternary ammonium compound to chlorhexidine or a chlorhexidine salt is preferably from 1 : 1 to 3: 1 in the compositions of the invention.
  • composition of the invention may, for example, comprise as component (i) a compound of formula:
  • Q 2 has structure -(CH2)aNHC(0)(CH2)bCHCH2, wherein a + b is an integer of from 8 to 18 (such as 10 to 18), provided that a and b are each independently an integer of from 1 to 9, for example a is from 1 to 5 and b is from 5 to 9, wherein Y " is as previously defined and;
  • an anti-microbial quaternary ammonium compound of formula (A) as component (ii) an anti-microbial quaternary ammonium compound of formula (A)
  • Ri and R2 are each independently a straight chain, un-substituted and uninterrupted C8-12 alkyl group and X " is a halide anion such as chloride, bromide, fluoride, iodide or sulphonate, saccharinate, or bicarbonate and chlorhexidine or a chlorhexidine salt.
  • these compositions may contain a compound of formula (B) as defined above.
  • composition of the invention may, for example, comprise as component (i) [N(CH 3 )3(CH2)3NHC(0)(CH2)8CHCH 2 ] + CH3SO4 " , (undecylenamidopropyltrimonium methosulfate) and;
  • these compositions may contain a compound of formula (B) as defined above.
  • Examples of the compound of formula (A) suitable for use in such compositions include di- n-decyldimethyl ammonium chloride, octyl decyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride and mixtures thereof.
  • composition of the invention may, for example, comprise as component (i) a compound of formula:
  • Q 1 is an unsubstituted, uninterrupted C14-20 alkyl chain
  • Y " is as previously defined and as component (ii) at least one benzalkonium compound of formula
  • compositions may contain a compound of formula (A) as defined above.
  • composition of the invention may, for example, comprise as component (i) [N(CH3)3 Ci6 ⁇ 33 CI " , cetyl trimethyl ammonium chloride (CTAC) and as component (ii) at least one benzalkonium compound of formula (B)
  • compositions may contain a compound of formula (A) as defined above.
  • compounds of formula (B) suitable for use in such compositions include benzalkonium chloride (BAC) and/or benzethonium chloride (BENZ).
  • compositions of the invention may additionally comprise other suitable anti-microbial agent(s) (b), such as those described in the EPA (United States Environmental Protection Agency) Listing and Annex I and Annex 3 of the EC Biocides Directive.
  • suitable anti-microbial agent(s) such as those described in the EPA (United States Environmental Protection Agency) Listing and Annex I and Annex 3 of the EC Biocides Directive.
  • the compounds used as anti-microbial agents are those that are suitable for application to the skin.
  • compounds that meet the required regulatory approval for human hygiene such as those compounds approved by the European Commission, when used in products of Product-type 1 as listed in Annex II of the European Commission's delegated regulation (EU) No. 1062/2014 of 4 August 2014 and/or those approved by the FDA (Food and Drugs Administration).
  • EU European Commission's delegated regulation
  • Suitable additional anti-microbial agents (b) that may be included in the anti-microbial component (ii) include anti-microbial agents that are not quaternary ammonium compounds. Preferably, these additional anti-microbial agent(s) are water soluble at room temperature and pressure. Examples of suitable additional anti-microbial agents include but are not limited to polymeric biguanidines (e.g.
  • polyhexamethylene biguanidine PHMB
  • hydrogen peroxide hydrogen peroxide
  • lactic acid silver
  • silver salts of silver (for example silver chloride, silver carbonate, silver citrate, silver dihydrogen citrate), octenidine HCI, amphoteric compounds, iodophores, phenolic compounds, amine anti-microbial agents and nitrogen based heterocyclic compounds, ortho phenyl phenol (OPP), and nitro bromopropanes (e.g. bronopol (INN), 2-bromo-2-nitropropane-1 ,3-diol), naturally derived biocidal compounds (e.g. honey and extracts of honey such as those comprising methyl glyoxal), flavenoid based anti-microbials, and essential oils.
  • biocidal compounds e.g. honey and extracts of honey such as those comprising methyl glyoxal
  • flavenoid based anti-microbials and essential oils.
  • compositions of the invention are free of inorganic anti-microbial agents such as those comprising silver.
  • any additional anti-microbial agent is an organic anti-microbial agent.
  • the compositions of the invention do not comprise PHMB or they may be free of polymeric biguanides. For example, they do not contain a biguanide in addition to chlorhexidine.
  • the anti-microbial composition does not comprise any isothiazalones and/or any nitrobromopropanes such as bronopol and/or any hypochlorites.
  • the anti-microbial composition does not contain antimicrobial compounds that are poorly soluble in water such as phenolic compounds.
  • the amount of component (i) may be from about 0.01 to 5% by weight of the composition, for example from about 0.05 to about 2% by weight of the composition, such as from about 0.08 to about 0.5% by weight of the composition.
  • the total amount of antimicrobial component (ii) and component (b) if present may be from about 0.01 to about 5% by weight of the composition, for example from about 0.02 to about 2% by weight of the composition, such as from about 0.05 to about 0.6% by weight of the composition.
  • the amount of anti-microbial component (ii) may be from about 0.05 to about 0.6% by weight.
  • the anti-microbial component (ii) may comprise equal amounts of quaternary ammonium compound and chlorhexidine, or salt thereof. For example, if the total amount of anti- microbial component is about 0.2% by weight of the composition, the amount of quaternary ammonium compound would be about 0.1 % and the amount of chlorhexidine or salt thereof would be about 0.1 %.
  • the anti-microbial component may comprise different amounts of quaternary ammonium compound and chlorhexidine.
  • the ratio of the quaternary ammonium compound to the chlorhexidine or salt thereof may from about 4: 1 to 1 :2, preferably from 1 : 1 to 3: 1.
  • the ratio of component (i) to anti-microbial component (ii) ranges from 15:1 to 1 : 10 or from 5:1 to 1 :5.
  • examples of compositions of the invention include wherein the ratio of the at least one antimicrobial quaternary ammonium compound to chlorhexidine or a chlorhexidine salt is from 1 :1 to 3: 1 and the ratio of component (i) to component (ii) is from 15: 1 to 1 :10 or from 5: 1 to 1 :5.
  • the amount of component (i) may be from about 0.01 to about 5% by weight of the composition and the amount of component (ii) and component (b) if present is from may be from about 0.05 to about 0.6% by weight of the composition.
  • compositions of the invention comprise a polar solvent (iii).
  • Suitable polar solvents include, but are not limited to, water, alcohols, glycol ethers and mixtures thereof.
  • Suitable alcohols include, but are not limited to, straight or branched chain Ci to Cs alcohols, (such as methanol, ethanol, n-propanol, iso-propanol, mixtures of propanol isomers, n-butanol, sec-butanol, tert-butanol, iso-butanol), mixtures of butanol isomers, 2- methyl-1-butanol, n-pentanol, mixtures of pentanol isomers and amyl alcohol (mixture of isomers), and mixtures thereof.
  • Preferred polar solvents for use in the compositions of the invention include, but are not limited to, water, ethanol, isopentydiol, mono propylene glycol, hexylene glycol, 3- methoxy-3-methyl-1 -butanol (MMB), n-propanol, isopropanol, ethylene glycol ethers, propylene glycol ethers, butyl diglycol (BDG) and mixtures thereof.
  • the composition comprises water, or a mixture of water and one or more alcohols selected from the alcohols described above. In such mixtures, water is preferably the major component.
  • the polar solvent may consist essentially of water or consist of water.
  • compositions of the invention comprise an alcohol
  • the alcohol is typically present in an amount lower than the amount necessary for the alcohol to provide an anti-microbial effect, but at a level that it is believed improves drying of the composition on skin.
  • the compositions of the invention may comprise up to about 30% by weight alcohol, such as between 20 and 30% by weight alcohol or less than about 20% by weight alcohol, such as from about 15 to about 20% by weight alcohol.
  • the percentage of alcohol may depend on the use of the composition.
  • the composition of the invention may comprise up to 20% alcohol.
  • compositions of the invention are substantially free of alcohol.
  • the compositions may contain 1 % or less by weight alcohol.
  • the compositions may contain less than 1 % or less than 0.5% by weight or 0.1 % by weight or less of an alcohol such as isopropanol.
  • compositions of the invention may comprise no isopropanol or may comprise no alcohol.
  • compositions of the invention may comprise an alcohol up to a level of 70% by weight, e.g. up to about 50% by weight.
  • the composition may comprise water or a mixture of water and one or more alcohols selected from the alcohols described above. In such mixtures, water is preferably the major component.
  • the polar solvent may consist of or consist essentially of water.
  • the polar solvent may be water and from about 0 to about 20% by weight, such as from about 15 to about 20% by weight of an alcohol, for example ethanol or isopropanol.
  • compositions of the invention can be provided in concentrated form for dilution before use or in ready to use form. It is preferred that the compositions of the invention are provided in ready to use form and, unless otherwise stated, information about amounts (such as weight% or ppm) provided in this document relate to ready to use compositions.
  • the pH of the compositions and formulations used can vary within wide limits, for example from about pH 2 to about pH 12, more preferably from about pH 3 to about pH 10 or about pH 4.5 to 8.
  • the pH of a formulation used in the invention may be similar to that of known formulations which are intended to be used for the same purpose or a similar purpose.
  • a formulation that is intended to come into contact with the skin such as a personal care or first aid formulations will typically have a pH which will not irritate the skin, for example from about pH 3 to about pH 8, such as from about pH 3.5 to about pH 7.5 or from about pH 4 to about pH 7.
  • the pH of the compositions of the invention is typically from about 4 to about 7. It will be appreciated that the compositions of the invention can comprise other ingredients commonly used in the art. The nature of any other ingredients used will depend on the nature and intended purpose of the composition. The person of ordinary skill in the art will know which additional ingredients are suitable for use in compositions for different applications.
  • compositions of the present invention may comprise additional materials such as surfactants, complexing agents, buffering agents, thickening agents, skin conditioning compounds, polar solvents and fragrances.
  • surfactants will depend on the nature of and the intended purpose of the composition. Suitable surfactants for use in formulations intended for different purposes will be within the knowledge of the person of ordinary skill in the art. Likewise, the selection of suitable amounts of surfactant will be within the knowledge of the person of ordinary skill in the art. Suitable surfactants may be selected from non-ionic, cationic or amphoteric and mixtures thereof.
  • compositions of the invention may comprise a non-ionic surfactant.
  • Suitable non-ionic surfactants include, but are not limited to, amine oxides, alkyl polyglucosides, linear and branched 1° and 2° alcohol ethoxylates, and ethoxylated/propoxylated (EOPO) block polymers.
  • composition is substantially free of or free of anionic surfactant. In another aspect, the compositions of the invention do not comprise an amphoteric surfactant.
  • compositions of the invention may comprise an amphoteric surfactant.
  • Suitable amphoteric surfactants include but are not limited to C6-C20 alkylamphoacetates or amphodiacetates (such as cocoamphoacetates), C10-C18 alkyldimethyl betaines, C10-C18 alkyl amidopropyldimethyl betaines. Examples include but are not limited to coconut amphoteric surfactant cocoamidopropyl betaine (CAPB) (Surfac B4, CAS 61789-40-9), coco imidazoline betaine, oleo amido propyl betaine, and tall oil imidazoline.
  • CAPB cocoamidopropyl betaine
  • coco imidazoline betaine coco imidazoline betaine
  • oleo amido propyl betaine oleo amido propyl betaine
  • tall oil imidazoline tall oil imidazoline.
  • compositions of the invention may comprise a cationic surfactant.
  • Suitable cationic surfactants include but are not limited to undecylenamidopropyltrimonium methosulphate and cetrimonium chloride.
  • the amount of surfactant present in the compositions of the invention is from about 0.01 to 20% by weight. The amount of surfactant depends on a number of factors such as the pH of the composition and the intended use of the composition.
  • compositions of the invention may comprise complexing agents.
  • sequestering agents or chelates are sometimes used interchangeably with the term complexing agents.
  • complexing agents include both sequestering agents and chelates. Complexing agents can be used to help provide a clear composition even when the compositions of the invention are used with hard water.
  • Suitable complexing agents include but are not limited to EDTA (Ethylenediaminetetraacetic acid), Gluconate, GLDA (Glutamic acid diacetic acid) - Trade name Dissolvine GL, EDDS (Ethylenediamine-N,N'-disuccinic acid), citrates and gluconates or salts of glutaric, adipic and succinic acids and mixtures thereof.
  • EDTA Ethylenediaminetetraacetic acid
  • Gluconate Gluconate
  • GLDA Glutamic acid diacetic acid
  • Dissolvine GL EDDS (Ethylenediamine-N,N'-disuccinic acid)
  • citrates and gluconates or salts of glutaric, adipic and succinic acids and mixtures thereof If the complexing agent contains a counter ion that counter ion is preferably metallic. Suitable metallic counter ions include but are not limited to Na, Ca
  • Preferred complexing agents are GLDA (Dissolvine) and EDTA.
  • the complexing agents are typically present in an amount of from about 100 to 10,000 ppm, preferably from about 400 to 3,000 ppm, for example from about 500 to 2000ppm.
  • Buffering agents may be included to adjust the pH of the composition to the required value and maintain it at or close to that pH value during storage and use.
  • Suitable pH modifiers include but are not limited to acids such as citric, sulfamic, hydrochloric, phosphoric, nitric, lactic, formic, acetic glycolic or gluconic acids or other mineral or organic acids or bases such as sodium or potassium hydroxide, triethanolamines and carbonates and mixtures thereof. Thickening agents can be included to adjust the viscosity of the composition to the required value for such purposes as to make the composition more stable; facilitate application of the composition; or for aesthetic benefits.
  • acids such as citric, sulfamic, hydrochloric, phosphoric, nitric, lactic, formic, acetic glycolic or gluconic acids or other mineral or organic acids or bases such as sodium or potassium hydroxide, triethanolamines and carbonates and mixtures thereof.
  • Thickening agents can be included to adjust the viscosity of the composition to the required value for such purposes as to make the composition more stable; facilitate application of the composition; or for aesthetic benefits.
  • thickening agents include but are not limited to hydroxypropylmethylcellulose stearoxy ether supplied commercially by Daido chemical corporation under the tradename Sangelose 90, and a polyquaternium 37 supplied by Rheo Lab under the tradename Kleasol 200ST.
  • compositions of the invention may contain skin conditioning compounds.
  • suitable skin conditioning compounds include, but are not limited to, panthenol, tocopheryl acetate, glycerine, polyquaternium compounds, PEG-7-glyceryl cocoate, and silicones and mixtures thereof.
  • the compositions of the invention do not comprise mucopolysaccharides.
  • the compositions of the invention may alternatively or additionally contain salts such as the halides of alkali metals or alkaline earth metals such NaCI or KCI. In some situations, the use of salts can facilitate the formation of a stable composition.
  • compositions of the invention may also contain other ingredients that are standard in the art such as colorants, fragrances, emollients, antioxidants and mixtures thereof.
  • compositions of the invention may be free of anionic materials.
  • anionic materials we do not include counterions that may for present in any of the ingredients used in the invention, such as counterions associated with a quaternary ammonium compound.
  • the compositions of the invention may, for example, be free of anionic polyelectrolytes, such as high molecular weight, anionic mucomimetic polymers, polystyrene sulfonic acid polymers and cationic exchange resins.
  • compositions of the invention have advantageous anti- microbial effects, and particularly when applied to the surface of skin.
  • such compositions have an anti-microbial effect when initially applied to a surface (so called “wet kill”) and they can also have a residual anti-microbial effect in that they control, reduce or prevent the formation of new microbial colonies at the surface (so called “dry kill”) that may otherwise result in the formation of more persistent biofilms.
  • compositions of the invention are also resistant to washing with water and to wiping. This means that the compositions of the invention provide a residual anti-microbial effect even when the surface which has been treated is subsequently wiped and/or washed or rinsed with water.
  • compositions of the invention are particularly suitable for use as skin or hand sanitizers or on other surfaces. Some compositions are suitable for use on other surfaces.
  • the compositions of the invention typically provide a residual anti-microbial effect.
  • compositions may be used in a wide variety of formats and applications for the purpose of skin sanitization.
  • the compositions of the invention are particularly suitable for formulation into mousses, gels, creams, lotions, liquids, sprays and wipes to be used in body or skin sanitisation, such as hand sanitizers.
  • the substrates used to prepare the wipes may be made of any suitable woven or non-woven material.
  • Suitable wipe materials include, but are not limited to, non-woven fibrous sheet materials and those made of fibres from natural sources such as wood pulp, and viscose or other cellulose based materials, silk fibres and keratin fibres.
  • the materials comprise from 1 to 100% by weight of a cellulosic material.
  • 100% cellulosic materials such as viscose or wood pulp may be used.
  • Other preferred materials include blends of cellulosic and non-cellulosic materials, such as blend of viscose with synthetic substrates such as polyester or polypropylene.
  • Blended materials may comprise from 1 to 99.9 % by weight of a cellulosic material such as viscose, for example from 20 to 80% by weight or from 30 to 70 % by weight of a cellulosic material such as viscose.
  • the compositions of the invention can be used on humans and animals for both therapeutic and non-therapeutic purposes. Examples of products for non-therapeutic uses include personal care and personal hygiene products. Examples of products for therapeutic purposes include first aid and skin care products. Compositions of the invention may also be in the form of a liquid and packed into suitable dispensers to provide a foam, mousse or spray in use. Compositions of the invention may be used for foot hygiene products, including those for direct use on the foot and those for the treatment/deodorisation of footwear, particularly sports footwear.
  • compositions of the invention can also be used in other personal care products which are used for direct application on skin or hair for example soap, bath and shower products, hair care products including shampoo, and anti-dandruff shampoos, hair conditioners hair styling products such as hair mousses, gels and sprays, skincare products such as shaving products, cosmetics and products for hair removal, deodorant and antiperspirant products, baby products including baby cleaning and cleansing products such as baby bath, soaps, wipes, moisturisers, nappy rash cream, products for cleaning surfaces that have regular and high incidence of infant and baby contact.
  • hair care products including shampoo, and anti-dandruff shampoos, hair conditioners hair styling products such as hair mousses, gels and sprays
  • skincare products such as shaving products, cosmetics and products for hair removal, deodorant and antiperspirant products
  • baby products including baby cleaning and cleansing products such as baby bath, soaps, wipes, moisturisers, nappy rash cream, products for cleaning surfaces that have regular and high incidence of infant and baby contact.
  • compositions of the invention may be used as hygienic cleansers in pet products for direct application to the skin surface of the animal or its coat or fur for the purpose of eradicating or inhibiting micro-organisms which may otherwise have a detrimental effect on the animal's health, well-being or cleanliness.
  • Such compositions can also be applied to materials such as surfaces which come into contact with animals and to which microorganisms may be transferred from the animal. The benefit of such applications is again to eradicate or inhibit such micro-organisms which otherwise may be transferred to another animal or human and also to control or eliminate the by-products that such organisms may produce such as malodour.
  • Such pet applications may include but not be limited to stain and odour removal sprays, disinfectant sprays and wipes, outdoor hutch cleaners, cage cleaners, anti-bacterial cat litter tray sprays and wipes, dog shampoos and spritzers and dog ear cleaning wipes.
  • compositions of the invention may be used for First Aid topical applications to skin to sanitize abrasions or wounds on the surface of the skin to prevent or deter infection, or to prevent minor infections such as athletes' foot, verruca, warts, spot/acne prevention/treatment products.
  • the invention provides products for these uses, such as wound care or first aid products that comprise a composition of the invention.
  • Compositions of the invention may also be used for medical applications such as sterilization of catheters, dialysis and other medical equipment; inhibiting or eradicating viruses such norovirus, polio virus or adenovirus; and prevention or eradication of persistent biofilms.
  • Compositions of the invention may also be used on surfaces other than skin.
  • Examples of applications of the invention to surfaces other than skin include but are not limited to: surface cleaners such as those intended for use in bathrooms, kitchens, living areas; hard floor cleaners; carpet cleaners; furniture cleaners; glass/mirror cleaners; toilet care products including solid toilet cleaners such as rim devices and those designed to be placed in the cistern; liquid toilet cleaners excluding those comprising hypochlorite bleaches; dishwashing products such as washing up liquids and preparations from dishwashing machines such as dishwashing solids (in powder or tablet format) & liquids; Laundry products such as solid detergents (in powder or tablet format); liquid detergents; fabric conditioners and "2 in 1" products comprising detergent and fabric conditioner; cleaning products intended for use outdoors such as those for cleaning for wood, stone, concrete or plastics, for example patio cleaner, garden furniture cleaners/treatments, BBQ cleaners, wall and fence cleaners/treatments; plant sprays such as those intended to remove insects such as aphides from plants; food sprays, such as those suitable for use in food preservation
  • composition or formulation or component being described must contain the listed ingredient(s) but may optionally contain additional ingredients.
  • Consisting essentially of” or “consists essentially of” we mean that the composition or formulation or component being described must contain the listed ingredient(s) and may also contain small (for example up to 5% by weight, or up to 1 % or 0.1 % by weight) of other ingredients provided that any additional ingredients do not affect the essential properties of the composition, formulation or component.
  • Consisting of we mean that the composition or formulation or component being described must contain the listed ingredient(s) only.
  • compositions or formulation or component being described contains less than 3% by weight, preferably less than 1 %, more preferably 0.1 % or less by weight of the stated ingredient.
  • compositions of the invention that are substantially free of alcohol contain less than 3% by weight of alcohol, preferably less than 1 % by weight of alcohol, more preferably 0.1 % or less alcohol.
  • anti-microbial we mean a compound or composition that kills and/or inhibits the growth of microbes (microorganisms).
  • microbiocidal is used to refer to compounds or compositions that kill microbes.
  • the compositions of the invention are anti- microbial and/or microbiocidal.
  • microorganisms By the term “sanitising” or “sanitizer” we mean the reducing in the total number of microbes on a surface.
  • sterilising we mean the elimination of microbiological organisms to achieve asepsis (a sterile microbial environment).
  • a microorganism or microbe is an organism that is microscopic (too small to be seen by the human eye). Examples of microorganisms include bacteria, fungi, yeasts, moulds, mycobacteria, algae spores, archaea and protists. Microorganisms are generally single- celled or unicellular organisms. However, as used herein, the term “microorganisms” also includes viruses.
  • compositions of the invention may be anti-bacterial, anti-fungal, anti-algal, anti-sporal, anti-viral, anti-yeast and/or anti-mould.
  • the compositions of the invention are particularly suitable for use against bacteria, such as E.coli.
  • anti-bacterial, anti-fungal, anti-algal, anti-viral, anti-yeast and anti-mould agents are intended to refer to agents that inhibit the growth of the respective microorganisms but do not necessarily kill the microorganisms and agents that kill the respective microorganisms.
  • anti-bacterial we include agents that inhibit the growth of bacteria but may not necessarily kill bacteria and bactericidal agents that do kill bacteria.
  • anti-bacterial agents include myobactericides and tuberculocides.
  • the compositions of the invention comprise at least one agent selected from anti-bacterial, anti-fungal, anti-algal, anti-sporal, anti-viral, anti-yeast and anti-mould agents and mixtures thereof. More preferably, the compositions of the invention comprise at least one anti-bacterial, anti-viral, anti-fungal and/or anti-mould agent.
  • compositions of the invention can be effective against a wide range of organisms, including Gram negative and Gram positive bacteria, fungi, yeasts, viruses and some spore forming bacteria
  • An advantage of the invention is that it is possible to prevent a broad range of microorganisms from adhering and attaching to the surface, and, therefore, from forming a biofilm. Large numerous colonies are also substantially prevented from forming. Thus, the ability of the colony to grow is substantially reduced or even prevented.
  • the invention is therefore general in its control of microorganisms.
  • the compositions may be used to reduce or control the formation of a biofilm.
  • the compositions of the invention advantageously provide a residual anti-microbial effect whereby the anti-microbial action continues for a significant period after the initial application of the composition.
  • the compositions of the invention do not need to contain materials that are highly toxic to mammals.
  • the anti-microbial agents used in the anti-microbial compositions are typically well known and widely understood and tested anti-microbial agents. The efficacy of the known anti-microbial agents is amplified in the formulations of the invention. Therefore, anti-microbial agents that have a low toxicity can be used in the anti-microbial compositions. In contrast, many "new" anti-microbial agents for known techniques of sanitization use "stronger", more toxic and/or little tested materials.
  • the anti-microbial compositions of the invention do not contain materials that produce highly persistent residues or rinsates or products that contain heavy metals and their salts. Thus, there is a greatly reduced risk of long term hazards.
  • the anti-microbial compositions of the invention do not interfere with the biochemical reproductive pathways of the micro-organisms they control. The risk of resistance build up and the development of resistant strains is, therefore, low.
  • the anti-microbial compositions of the invention can have a duel effect in that not only do they provide an anti-microbial effect in use but they can also have a preservative effect on the composition. This means that it is typically not necessary to include additional preservatives in the formulations of the invention.
  • compositions of the invention do not typically give surfaces to which they are applied a greasy feel.
  • composition of the invention to control, reduce or prevent the formation of colonies of micro-organisms on a surface at which it is provided.
  • the present invention provides a method for providing a residual anti-microbial benefit to a surface such as a hard surface or skin, which method comprises applying a composition as defined herein to that surface or skin.
  • the composition may, for example, be applied to the surface or skin by spraying the composition on the surface or wiping the composition onto the surface or skin.
  • a method that consists essentially of or consists of applying the composition to the surface or skin is provided.
  • the surface to which the composition of the invention is applied is a surface of the body, such as skin.
  • the anti-microbial compositions of the invention can typically degrade when submersed in water, to provide a rinsate/leachate of low toxicity and which has a short residence time in the environment.
  • an anti-microbial composition of the invention to reduce or prevent the formation of colonies of microorganisms on a surface at which it is provided, such as skin.
  • anti-microbial compositions of the invention are typically made by a process as described below.
  • a process for preparing an anti-microbial composition as herein described comprising:
  • the pH of the solution obtained after step (ii) may require adjusting. Therefore, the present invention also describes a process in which (iii) the pH of the solution is adjusted after step (ii).
  • compositions as described in Table 1 were prepared using the method of described below.
  • the commercially available compounds used in the compositions are listed below.
  • Acticide DDQ 40 supplied by Thor contains 40% di-n-decyldimethyl ammonium chloride (DDAC). This is an example of component (ii) of the invention, being of Formula Type A.
  • Acticide BAC 50M supplied by Thor contains 50% Benzalkonium chloride (BAC) is also an example of component (ii) of the invention, being of Formula Type B.
  • Chlorhexidine di-gluconate (CHDG), supplied by Evonik: a 20% solution is a further example of component (ii) of the invention.
  • Benzethonium Chloride USP supplied by Lonza (Benz): a Benzalkonium derivative and contains 100% Diisobutylphenoxyethoxyethyl-dimethylbenzyl ammonium chloride (BENZ) otherwise known as Benzethonium Chloride. It is a further example of component (ii) of the invention.
  • the polar solvent (component (Hi)) was placed in a suitably sized vessel (typically of 1 litre capacity). A small amount of the polar solvent was retained to allow for final weight adjustment. The required amount of the biocide(s) (component (ii)), was then added to the vessel, with the vessel being stirred for 5 minutes after addition of each biocide before the next biocide is added. The required amount of the REW (component (i)) was then added and the vessel stirred for a further 5 minutes. The pH was checked and was adjusted using lactic acid or sodium hydroxide solution if required. The solution was then made up to 100% by weight by adding the retained polar solvent and stirred for a final 10 minutes.
  • the ppm of REW refers to the amount of the primary chemical component present in Rewocid UTM 185, namely undecylenamidopropyltrimonium methosulfate and the ppm of the components (ii) of the invention refers to the amount of the active chemical component, namely DDAC-di-n-decyldimethyl ammonium chloride; CHDG-Chlorhexidine digluconate; B HZ-Benzethonium Chloride; or BAC-Benzalkonium Chloride.
  • Example 1 0 1800 0 600 600 2400 0.25
  • Example 2 0 1800 0 600 1200 2400 0.5
  • Example 3 0 1800 0 600 2400 2400 1
  • Example 4 0 1800 0 600 4800 2400 2
  • Example 5 0 0 1000 1000 4800 2000 2.4
  • Example 6 1000 0 0 1000 4800 2000 2.4
  • Example 7 0 1000 0 1000 4800 2000 2.4
  • Example 8 0 1800 0 600 7200 2400 3
  • Example 11 1800 0 0 600 24000 2400 10
  • Example 12 1800 0 0 600 36000 2400 15
  • Example 12 Evaluation of Residual Anti-Microbial Efficacy of Examples and Comparative Examples 25 micro litres (0.025ml) of test sample was applied to a 2cm x 2cm section of Vitro-Skin (as supplied by IMS, Inc.) in duplicate in a Petri dish. The test sample was spread on the vitro-skin® surface with a sterile inoculation loop ensuring that approximately a 0.5 cm perimeter was left untreated to the edge. The test sample was allowed to dry on the vitro- skin®*2 at 20°C in an oven with the Petri dish lid left off for one hour.
  • Vitro-Skin as supplied by IMS, Inc.
  • the Petri dish was then removed from the oven and a strip of polypropylene wipe saturated with a sterile tryptone/saline solution placed inside. The lid was closed and then placed back in the oven for 4 hours at 20°C. After this time the Petri dish was removed from the oven and 10ul of a 1-1.5 x 10 ⁇ 8 cfu/ml. suspension of E. coli K12*i prepared in tryptone/saline solution was added to the surface of the vitro-skin® containing the test sample and spread with a sterile inoculation loop ensuring the suspension stayed within the treated area of the vitroskin. The bacterial suspension was left in contact with the vitroskin for 5 minutes.
  • the vitro-skin® was removed from the petri dish and placed in a test tube containing 10ml of neutralisation solution. It was shaken gently and left for a further 5 minutes after which the tube was vortex mixed for 1 minute to recover the bacteria from the surface of the vitroskin. A 1 ml sample of this suspension was then plated with tryptone soya agar and incubated for 48 hours at 37°C. After this time the log reduction in E. coli K12 was calculated by comparison with the water-treated control.
  • *2 vitro-skin® is a testing substrate that mimics the surface properties of human skin. It is a synthetic non-biological product that has been formulated to have topography, pH, critical surface tension and ionic strength that are similar to human skin. It is a well-known and used substrate for those trained in the art to evaluate the benefits of topological applications of skin-care products to skin, which includes the evaluation of biocidal efficacy of actives applied to skin.
  • Examples of published, peer-reviewed work with vitro-skin include US2009/0202463 which describes a method for evaluating antimicrobial compositions that provide enhanced immediate and residual anti-viral and antibacterial efficacy on the surface of skin; evaluation of the efficacy of organic acids in Hand Cleansers for the prevention of rhinovirus infections as described in the Journal of Antimicrobial Agents and Chemotherapy; 48(7); 2004 July; 2595-2598; US2012/0141396 describes disinfectant compositions that provide a prolonged antimicrobial property to a variety of surfaces, including skin, evaluated using vitro-skin.
  • the Examples and Comparative Examples were made to the compositions described in Table 1 following the method described above.
  • the Examples and Comparative Examples Samples were then tested for anti-microbial efficacy using the method described above. The results of these tests are shown in Table 2 below.
  • Comparative Example 1 shows that REW has almost no anti-microbial activity.

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Abstract

La présente invention concerne une composition antimicrobienne comprenant: (i) un composé de formule: [N(CH3)3Q2 + Y -(C2) où Q 2 présente une structure -(CH2)aNHC(O)(CH2)bCHCH2, où a + b est un nombre entier compris entre 8 et 18, à condition qu'a et b représentent chacun indépendamment un nombre entier compris entre 1 et 9, où Y- représente un anion halogénure, alkylsulfate, sulfonate, saccharinate, ou bicarbonate, ou un mélange de composés de formule (C2); (ii) au moins un composé d'ammonium quaternaire antimicrobien et de la chlorhexidine ou un sel de chlorhexidine; et (i) un solvant polaire. En particulier, l'invention concerne des compositions antimicrobiennes qui peuvent être utilisées sur la peau.
PCT/GB2017/052399 2016-08-17 2017-08-15 Composition antimicrobienne WO2018033718A1 (fr)

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BR112019002782-3A BR112019002782A2 (pt) 2016-08-17 2017-08-15 composição antimicrobiana, uso da composição, métodos para reduzir substancialmente ou controlar a formação de colônias microbianas sobre ou em uma superfície e para interromper, impedir ou reduzir a adesão e/ou fixação de micro-organismos a uma superfície, desinfetante para as mãos, produto para cuidado de ferimentos, e, lenço antimicrobiano.
CN201780050291.7A CN109561694B (zh) 2016-08-17 2017-08-15 抗微生物组合物
EP17758255.8A EP3500102B1 (fr) 2016-08-17 2017-08-15 Composition antimicrobienne
JP2019530238A JP2019531335A (ja) 2016-08-17 2017-08-15 抗微生物性組成物
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021234463A1 (fr) * 2020-05-08 2021-11-25 2 V Industries, Inc. Composition désinfectante enrichie présentant des caractéristiques antimicrobiennes
WO2022016069A1 (fr) 2020-07-17 2022-01-20 Sterilex, Llc Solutions désinfectantes/assainissantes
US20220023168A1 (en) * 2020-07-21 2022-01-27 Hydrodyne Systems Ltd Antimicrobial cosmetic preparation
WO2022038351A1 (fr) * 2020-08-17 2022-02-24 Helperby Therapeutics Limited Composition désinfectante
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CN114306741B (zh) * 2021-12-22 2022-08-02 西南交通大学 一种在可降解金属表面构建金属-有机分子复合物与无机相杂化功能涂层的方法
WO2023145560A1 (fr) * 2022-01-31 2023-08-03 花王株式会社 Composition pour inactiver un virus ou une bactérie

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WO2022038351A1 (fr) * 2020-08-17 2022-02-24 Helperby Therapeutics Limited Composition désinfectante
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CN109561694A (zh) 2019-04-02
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SG11201901257VA (en) 2019-03-28
EP3500102C0 (fr) 2023-06-07
CN109561694B (zh) 2022-09-27
BR112019002782A2 (pt) 2019-05-14
JP2019531335A (ja) 2019-10-31
EP3500102A1 (fr) 2019-06-26

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